This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Includes:

M4E1 Threaded Assembled Upper Receiver

ATLAS S-ONE Handguard of choice

16″ 5.56 CMV Barrel

Low Profile Gas Block and Mid-Length Gas Tube

Product comes assembled

This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab

M4E1 Threaded Upper Receiver Features:

New enhanced forging that gives the upper receiver a “billet look”

New picatinny profile that blends seamlessly with our Enhanced Series Handguards

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2420 Mohawk Street #200Bakersfield, CA 93308

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Your AR15 build is important to you, so it is important to us. Our return policy is simple, if you’re not 100% satisfied with your purchase send it back within 30 days for a no-questions-asked refund.

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